Government Decree No. 143 / 2012 Coll.

Government regulation on the procedure for the determination of waste water pollution, for calculating the amount of pollution and for measuring the volume of waste water discharged into surface water

Valid Effective from 01.06.2012
143
GOVERNMENT REGULATION
of 28 March 2012
on the procedure for determining the pollution of waste water, for calculating the amount of pollution and for measuring the volume of effluent to surface water
The Government orders pursuant to § 91 paragraph 3 of Act No. 254 / 2001 Coll., on Water and on the Amendment of Certain Laws (Water Act), as amended by Act No. 150 / 2010 Coll.:
§ 1
Closer definition of source of pollution
For the purposes of this Regulation, the source of pollution shall be the territory of the municipality, or, where appropriate, the territory of the municipality, which is separated and segregated separately, the territory of the military exit or the premises of an industrial undertaking or of any other object, provided that they emit separate waste water into surface water.
Procedure for determining the pollution contained in waste water and for detecting the average concentration of waste water pollution
§ 2
(1) The procedure for determining the pollution contained in waste water includes sampling, treatment, storage and transport, analysis of samples and evaluation of the results of such analyses. The technical requirements for pre-chemical treatment of samples are set out in Annex 1 to this Regulation. The pollution indicators and the analytical methods for their determination are set out in Annex 2 to this Regulation.
(2) Sampling and analysis of samples is carried out by an authorised laboratory. When sampling, the authorised laboratory shall allow the polluter to participate. Samples shall be taken at the place specified by the Water Authority in the waste water discharge permit; if the Water Authority has not established this site, the site shall, after consultation with the authorised laboratory, be determined by the Czech Environmental Inspection Office ("Inspection ').
(3) Sampling shall be documented. The documentation shall be based on the written processing of the sampling programme and the standard working procedure for sampling to be compiled using the statistical methods and technical standards set out in Annex 1 to this Regulation. Sampling shall be recorded in writing. Written records shall also be kept on the results of internal and external checks on compliance with the sampling programme and the standard working procedure for sampling.
(4) The minimum annual frequency of sampling and the types of samples shall be governed by a permit for discharge of waste water. Where the waste water discharge permit is not provided for, the procedure laid down in Annex 3 to this Regulation shall be followed, which shall determine the minimum annual frequency of sampling of discharges to determine the concentration of discharges. Sampling shall be evenly distributed throughout the calendar year. In the case of controlled, irregular or impacting waste water discharges which are not sufficiently regulated by the authorisation of the water authority, the frequency of sampling and the type of sample shall be determined for the purpose of calculating the fees after consultation with the polluter of the inspection in such a way as to determine as objectively as possible the amount of pollution discharged from the source.
(5) For the calculation of the amount of pollution, the results of the analyses of all samples processed under this Regulation, including the results of the analyses of samples taken by the control laboratory, shall be used.
(6) Average annual pollution concentration in waste water is collected
(a) for pollution emitted continuously as an arithmetic mean from the results of all sample analyses, if the number is less than 24 in the relevant calendar year;
(b) for pollution discharged continuously, and if the number of samples taken in the relevant calendar year is equal to or greater than 24, by the following procedure:
1. the results of all analyses of samples carried out in the calendar year shall determine the arithmetic mean and calculate the standard deviation sigma n,
2. the arithmetic mean calculated in accordance with point 1 shall be added and subtracted twice the sigma n value and the range of the results of the samples shall be determined,
3. the results of sample analyses exceeding the range of values referred to in point 2 shall be excluded and a new set of sample analyses shall be established; and
4. the arithmetic mean is determined from this set of sample analysis results;
(c) in the case of pollution discharged from the campaign production or in cases of controlled or irregular discharge, the average annual concentration shall be determined by a calculation to be made after consultation with the polluter of the Inspection.
(7) Where effluent is discharged from multiple effluents for a single source of pollution, the annual average concentration of effluent from all effluents of the source of pollution shall be calculated for comparison with the charging limits as a proportion of the sum of the amount of pollution discharged from all effluents of the source of pollution and the sum of the volumes of waste water discharged from all effluents of the source of pollution. A separate source of pollution is also considered to be a source of uncleaned waste water.
(8) The fact that the charged pollutants in waste water listed in Annex 2 to this Regulation (hereinafter referred to as pollution indicators) and discharged from the source of pollution do not exceed the mass or concentration limits for charging, where appropriate, is demonstrated primarily by monitoring the quantity and quality of waste water discharges at the site and in the manner laid down in the permit for discharges of waste water. Where the samples referred to in Annex 1 to this Regulation cannot be taken with sufficient credibility, the amount of pollution shall be determined by theoretical calculation.
§ 3
(1) The quality check and the quantity of waste water discharges include:
(a) an examination of the supporting documents kept by the polluter in the framework of the operations register and the sampling documentation kept by the approved laboratory for their adaptation and analysis; evidence of laboratory competence is also subject to examination,
(b) the collection and analysis of control samples for the purpose of monitoring the monitoring of waste water pollution carried out by the control laboratory.
(2) The control laboratory shall inform the polluter of the check immediately before it begins. At his request, he shall forward to him the pre-agreed part of the sample taken, following its adaptation in accordance with Annex 1 to this Regulation. The control laboratory shall notify the polluter of the end of the check and draw up a control report. The inspection laboratory shall notify the inspection no later than 20 days after the inspection of the results thereof. The control laboratory shall communicate the results of the check to the polluter without delay.
(3) The results of the analysis of waste water according to each pollution indicator shall be reported in the analysis report, including the uncertainties given for validation of the method for the laboratory concerned. For the calculation of the average annual concentration and quantity of pollution, the values of the measured uncertainties allowed shall not be taken into account.
(4) Where the control sample taken is analysed at the same time by both the control and the approved laboratory and differences in the results are identified in excess of the uncertainty of the measurement indicated for the determination by the authorised laboratory, the authorised laboratory shall immediately, upon receipt of the results of the analysis of the sample, initiate negotiations with the control laboratory to clarify and eliminate the causes of the different results. The approved and control laboratory shall cooperate with each other and shall transmit the results to each other in order to establish the objective state of the matter. The control laboratory shall inform the Inspection in writing of the outcome of the negotiations. If one of the analyses is identified as erroneous in the opinion of the control laboratory, the results of this analysis shall not be included in the data set for the calculation of fees for the indicator.
(5) Where, when calculating the fees, an inspection finds that the average concentration of the indicator calculated from the set of results of the control samples over the checked period is different
(a) by more than 30% from the concentration indicated by the polluter in the charge return, taking as a basis the polluter's figure, the basis for calculating the amount of the charge for the indicator shall be half the sum of the averages of the set of concentration values of the approved laboratory and the set of concentration values of the control laboratory; or
(b) by more than 50% from the concentration indicated by the polluter in the charge return, taking as a basis the figure of the polluter, the amount of the charge shall be calculated according to the concentration found by the control laboratory. The condition for applying the above procedure is that the minimum size of the set of control analyses carried out in that case will be from the number of analyses prescribed by the polluter in the discharge permit for the discharge, but not less than 5 samples. Reference samples shall be evenly distributed over the controlled period. In this way, the annual average concentration of pollution in the relevant pollution indicator shall be determined even if the approved laboratory does not analyse at the same time as the control laboratory the sample taken by the control sampling.
(6) If the polluter does not monitor the amount of pollution in the waste water discharged in the prescribed manner, the inspection may, for the calculation of the fee, use the results of the determination of the concentrations of the pollution indicators found in the year by the control laboratory in the number of analyses referred to in paragraph 5.
Measurement of effluent volume
§ 4
(1) The annual volume of effluent effluent is collected as the volume of effluent discharged per calendar year.
(2) The polluter shall ensure the location, method and frequency of measurement of the volume of waste water discharged in accordance with the conditions set out in the permit for discharge of waste water for the discharge concerned.
(3) Where a measuring instrument or measuring system is installed, the volume of waste water discharged per calendar year shall be calculated from the data of that measuring instrument or measuring system. The metering and measuring units of the quantity of waste water discharged by a fully filled pipeline are subject to mandatory verification under the Metrologii1 Act). The accuracy of the gauges of the effluent effluent in open profiles is ensured by their user calibration. The accuracy of the measurement system of the volume of waste water discharged shall be ensured by the user to the extent required by the performance assessment. The performance assessment shall be authorised to be carried out by qualified persons who are the holders of the authorisation to perform official flow measurements in free profiles under the Metrologii1 Act. The performance assessment report shall be a document of the performance assessment of the measurement system, annexed to which is the relevant evidence of official measurement carried out for this purpose. A measuring system that meets the technical and metrological requirements for working flow meters and deflected volumes and for assessing their performance shall be considered as functionally fit.
(4) The volume of waste water emitted during the period of failure of the measuring instrument or measuring system shall be derived from the number of hours during which the measuring instrument or measuring system was not in operation and from the average hourly flow over the period from the beginning of the year to the occurrence of the failure. If these data are not available, the volume shall be derived from the data of last year. The duration of the failure of the measuring instrument or measuring system shall be determined on the basis of its user's operational records.
(5) Where a measuring instrument or measuring system complying with the conditions referred to in paragraph 3 is not installed, the volume of waste water shall be determined on the basis of one-off measurements, at least on the basis of one weekly measurement per calendar year. The annual volume of waste water discharged shall be calculated as the product of the measured volume over a given period and the number of times per year. Disposable measurements shall be made under average flow conditions excluding or immediately after the results measured in long-lasting or intense collisions. If the volume of effluent effluent with sufficient credibility cannot be measured, an annual amount of pollution may be determined for discharges or sources of pollution by theoretical calculation.
(6) The measurement of the volume of waste water discharged is carried out by a measuring group. The check shall include verification of the accuracy of the measurements by detecting and certifying the volume or flow of waste water discharged. The measurement group shall issue a report on the performance control of the measuring system on the basis of official measurements carried out under the Metrologii1 Act.
(7) The results of the check shall be transmitted by the measurement group after completion of the check within 30 days to the Inspection.
(8) The difference between the volume measured by the polluter for a controlled source of pollution or discharge and the volume measured in the same period of time by the measuring group for two control measurements shall not exceed 10% of the results of the measuring group. If this range is exceeded, the arithmetic mean of the control measurement volumes shall be used to calculate the annual fees.
Operational registration formalities
§ 5
The operational records shall include:
(a) the waste water analysis protocol;
(b) a report on the analysis of the water collected, where a deduction is applied,
(c) the sampling protocol;
(d) the registration output of the flow measurement or their average values set at a given integration interval, or the recording of the operating hours or the error storage device;
(e) a single flow and volume measurement protocol;
(f) record and report of the verification, calibration or performance assessment of the measuring instrument;
(g) data records and the way in which all the values given in the charge report and the charge return are calculated, including supporting documents for the calculation of the charges for each source of pollution and its discharge or discharge;
(h) records of the volume of water collected;
(i) the record in the working log of the water works of taking samples for the purpose of determining the charges for discharges of waste water into surface waters, including the execution of control sampling;
(j) a record of the conduct and outcome of the conduct of the authorised and control laboratories to identify the causes of the different results of analyses of the same sample in accordance with the procedure laid down in Article 3 (4).
Implementation of readings of the amount of pollution in the collected water
§ 6
(1) The annual amount of pollution in the water collected in the relevant pollution indicators shall be calculated as the product of the annual volume of water collected and the average annual concentration of pollution calculated as the arithmetic mean of all samples taken per calendar year.
(2) The polluter shall demonstrate the average annual concentration of pollution in the water collected
(a) the results of the monitoring from the control profile of the national water quality monitoring network in water flows, if this profile is near the surface water collection; or
(b) the results of analyses of samples of water taken by authorised laboratories.
(3) Sampling shall be spread evenly throughout the calendar year, except for irregular water sampling where the sampling dates are determined after consultation with the polluter of the Inspection. The minimum sampling frequency for groundwater is 4 free samples in the calendar year and for surface water 12 free samples in the calendar year. Samples shall not be taken at a time when surface or groundwater water quality is affected due to unusual situations such as long-lasting or intense precipitation or snow melting. Sampling shall be subject to the obligation to keep the documentation referred to in Article 2 (3). The establishment of the programme and the establishment of a standard procedure shall be based on the requirements contained in the technical standards for the sampling of surface water and groundwater set out in Annex 2 to this Regulation.
(4) If the average concentration of pollution in the sampled water indicator subtracted does not exceed twice the limit of determination given for the pollution indicator in the standard for the analytical method used, the amount of pollution shall not be deducted in that pollution indicator.
Efficacy
§ 7
This Government Regulation shall enter into force on 1 June 2012.
Prime Minister:
RNDr. Netime v. r.
Minister of Environment:
Mgr. Chalupa v. r.

Příloha č. 1

Annex No. 1 to Government Decree No. 143 / 2012 Coll.
Technical requirements for pre-chemical treatment of samples
For the purposes of this Regulation, the method of treatment of the sample is determined in ČSN 75 7315 Treatment of waste water samples before chemical analysis. Details are given in Table A.1 in the normative Annex A to this standard.
The establishment of a sampling programme and the establishment of a standard sampling procedure shall be based on the requirements contained in the relevant technical standards for sampling set out below. EN ISO 5667-1 (75 7051) Water quality - Sampling - Part 1: Instructions for draft sampling programme and for sampling methods
EN ISO 5667-3 (75 7051) Water quality - Sampling - Part 3: Instructions for the preservation and handling of samples
EN ISO 5667-4 (75 7051) Water quality - Sampling - Part 4: Instructions for sampling from water tanks
EN ISO 5667-6 (75 7051) Water quality - Sampling - Part 6: Instructions for sampling of rivers and streams
EN ISO 5667-10 (75 7051) Water quality - Sampling - Part 10: Guidelines for waste water sampling
EN ISO 5667-11 (75 7051) Water quality - Sampling - Part 11: Guidelines for groundwater sampling
EN ISO 5667-14 (75 7051) Water quality - Sampling - Part 14: Guidelines for ensuring the quality of water sampling and handling

Příloha č. 2

Annex No 2 to Government Decree No. 143 / 2012 Coll.
Pollution indicators and analytical methods for their determination
Ukazatel znečištěníAnalytické metody stanovení ukazatelů znečištění
CHSKCrČSN ISO 15705 (75 7521) Jakost vod - Stanovení chemické spotřeby kyslíku (CHSKCr) - Metoda ve zkumavkách
ČSN ISO 6060 (75 7522) Jakost vod - Stanovení chemické spotřeby kyslíku
RASČSN 75 7347 Jakost vod - Stanovení rozpuštěných anorganických solí (RAS) v odpadních vodách - Gravimetrická metoda po filtraci filtrem ze skleněných vláken
NLČSN EN 872 (75 7349) Jakost vod - Stanovení nerozpuštěných látek - Metoda filtrace filtrem ze skleněných vláken
PcelkČSN EN ISO 6878 (75 7465), čl. 7 a čl. 8, Jakost vod - Stanovení fosforu - Spektrofotometrická metoda s molybdenanem amonným
ČSN EN ISO 11885 (75 7387) Jakost vod - Stanovení vybraných prvků optickou emisní spektrometrií s indukčně vázaným plazmatem (ICP-OES)
ČSN EN ISO 15681-1 (75 7464) Jakost vod - Stanovení orthofosforečnanů a celkového fosforu průtokovou analýzou (FIA a CFA) - Část 1: Metoda průtokové injekční analýzy (FIA)
ČSN EN ISO 15681-2 (75 7464) Jakost vod - Stanovení orthofosforečnanů a celkového fosforu průtokovou analýzou (FIA a CFA) - Část 2: Metoda kontinuální průtokové analýzy (CFA)
ČSN EN ISO 17294-2 (75 7388) Jakost vod - Použití hmotnostní spektrometrie s indukčně vázaným plazmatem (ICP-MS) - Část 2: Stanovení 62 prvků
N-NH4+ČSN ISO 5664 (75 7449) Jakost vod - Stanovení amonných iontů - Odměrná metoda po destilaci
ČSN ISO 7150-1 (75 7451) Jakost vod - Stanovení amonných iontů - Část 1: Manuální spektrometrická metoda
ČSN EN ISO 11732 (75 7454) Jakost vod - Stanovení amoniakálního dusíku - Metoda průtokové analýzy (CFA a FIA) se spektrofotometrickou detekcí
ČSN ISO 6778 (75 7450) Jakost vod - Stanovení amonných iontů - Potenciometrická metoda
ČSN EN ISO 14911 (75 7392) Jakost vod - Stanovení rozpuštěných kationtů Li+, Na+, NH4+, K+, Mn2+, Ca2+, Mg2+, Sr2+ a Ba2+ chromatografií iontů - Metoda pro vody a odpadní vody
Nanorg(N-NH4+) + (N-NO2-) + (N-NO3-)
N-NO2-ČSN EN 26777 (75 7452) Jakost vod - Stanovení dusitanů - Molekulární absorpční spektrofotometrická metoda
ČSN EN ISO 13395 (75 7456) Jakost vod - Stanovení dusitanového dusíku a dusičnanového dusíku a sumy obou průtokovou analýzou (CFA a FIA) se spektrofotometrickou detekcí
ČSN EN ISO 10304-1 (75 7391) Jakost vod - Stanovení rozpuštěných aniontů metodou kapalinové chromatografie iontů - Část 1: Stanovení bromidů, chloridů, fluoridů, dusičnanů, dusitanů, fosforečnanů a síranů
N-NO3-ČSN ISO 7890-3 (75 7453) Jakost vod - Stanovení dusičnanů - Část 3: Spektrometrická metoda s kyselinou sulfosalicylovou
ČSN EN ISO 13395 (75 7456) Jakost vod - Stanovení dusitanového dusíku a dusičnanového dusíku a sumy obou průtokovou analýzou (CFA a FIA) se spektrofotometrickou detekcí
ČSN EN ISO 10304-1 (75 7391) Jakost vod - Stanovení rozpuštěných aniontů metodou kapalinové chromatografie iontů - Část 1: Stanovení bromidů, chloridů, fluoridů, dusičnanů, dusitanů, fosforečnanů a síranů
ČSN 75 7455 Jakost vod - Stanovení dusičnanů - Fotometrická metoda s 2,6-dimethylfenolem - Metoda ve zkumavkách
AOXČSN EN ISO 9562 (75 7531) Jakost vod - Stanovení adsorbovatelných organicky vázaných halogenů (AOX)
HgČSN EN 1483 (75 7439) Jakost vod - Stanovení rtuti - Metoda atomové absorpční spektrometrie
ČSN 75 7440 Jakost vod - Stanovení celkové rtuti termickým rozkladem, amalgamací a atomovou absorpční spektrometrií
ČSN EN 12338 (75 7441) Jakost vod - Stanovení rtuti - Metody po zkoncentrování amalgamací
ČSN EN ISO 17852 (75 7442) Jakost vod - Stanovení rtuti - Metoda atomové fluorescenční spektrometrie
CdČSN EN ISO 5961 (75 7418) Jakost vod - Stanovení kadmia atomovou absorpční spektrometrií
ČSN EN ISO 11885 (75 7387) Jakost vod - Stanovení vybraných prvků optickou emisní spektrometrií s indukčně vázaným plazmatem (ICP-OES)
ČSN ISO 8288 (75 7382) Jakost vod - Stanovení kobaltu, niklu, mědi, zinku, kadmia a olova - Metody plamenové atomové absorpční spektrometrie
ČSN EN ISO 15586 (75 7381) Jakost vod - Stanovení stopových prvků atomovou absorpční spektrometrií s grafitovou kyvetou
ČSN EN ISO 17294-2 (75 7388) Jakost vod - Použití hmotnostní spektrometrie s indukčně vázaným plazmatem (ICP-MS) - Část 2: Stanovení 62 prvků
Explanatory notes:
For the determination of phosphorus according to CSN EN ISO 6878, the procedure is specified by reference to the relevant articles of this standard. The application of procedures with milder effects of mineralisation of the sample according to ČSN EN ISO 6878 Article 7 or according to ČSN EN ISO 11885 is subject to compliance with more effective methods of mineralisation of the sample according to ČSN EN ISO 6878 Article 8 or according to TNV 75 7466.
For the determination of ammonia nitrogen, the measuring method according to CSN ISO 5664 is suitable for higher concentrations, spectrometric method according to CSN ISO 7150-1 for lower concentrations. Before spectrometric determination according to CSN ISO 7150-1 and CSN EN ISO 11732 in contaminated waters in which the disruptive effects of filtration and dilution of the sample cannot be reduced, ammonia nitrogen shall be separated from the distillation matrix according to CSN ISO 5664.
For the determination of nitrite and nitrate nitrogen according to CSN EN ISO 10304-1, the sample is filtered with 0,45 micrometres before analysis. This modification, suitable to prevent changes to the sample due to microbial activity, may be used before determination according to ČSN EN 26777 and ČSN EN ISO 13395.
For the determination of cadmium, the flame atomic absorption spectrometry (AAS) method is suitable for the determination of higher concentrations, the Graphite Cycle AAS method, ICP-OES and ICP-MS are suitable for the determination of lower concentrations. ČSN EN ISO 5961 contains two AAS methods, both flame and graphite bouquets.
The limit of determination shall be as determined by the laboratory in the validation of the method. For the purposes of setting the fees, analyses of the charged pollutants shall be considered to be equal to zero with the result below the limit of determination.

Příloha č. 3

Annex No. 3 to Government Decree No. 143 / 2012 Coll.
Minimum annual sampling frequency for discharges of waste water to determine the concentration of discharges
Ukazatel znečištěníRoční množství znečištění
přitékajícího do zdroje
znečišťování
(t/rok)
Počet odběrů vzorků
a typ vzorku u výpustí
ze zdroje znečišťování
CHSKCr
(chemická spotřeba kyslíku dichromanovou metodou)
10 až 200 včetně4 / a) nebo b)
nad 200 až 1 000 včetně6 / c)
nad 1 000 až 4 000 včetně12 / c)
nad 4 00024 / c)
Nanorg
(celkový anorganický dusík)
20 až 100 včetně6 / b)
nad 100 až 350 včetně12 / c)
nad 35024 / c)
Celkový fosfor3 až 13 včetně (od 1.1.2005)6 / b)
nad 13 až 60 včetně12 / c)
nad 6024 / c)
RAS
(rozpuštěné anorganické soli)
20 až 100 včetně4 / a) nebo b)
nad 100 až 5 000 včetně12 / b)
nad 5 000 až 10 000 včetně12 / c)
nad 10 00024 / c)
NL
(nerozpuštěné látky)
10 až 50 včetně4 / a) nebo b)
nad 50 až 1 000 včetně12 / b)
nad 1 000 až 2 000 včetně12 / c)
nad 2 00024 / c)
AOX
(adsorbovatelné organické halogeny)
15 až 5 000 kg včetně12 / b)
nad 5 000 až 10 000 kg včetně12 / c)
nad 10 000 kg24 / c)
Hg
(rtuť)
0,4 až 50 kg včetně12 / b)
nad 50 až 200 kg včetně12 / c)
nad 200 kg24 / c)
Cd
(kadmium)
2 až 200 kg včetně12 / b)
nad 200 až 1 000 kg včetně12 / c)
nad 1 000 kg24 / c)
Type of sample at discharge from source of pollution
(a) a two-hour composite sample obtained by forming 8 incremental samples of the same volume at an interval of 15 minutes. This type of sample shall only be used for municipal waste water cleaned on a cleaning plant with a retention period of at least 24 hours for an annual quantity of 10 tonnes to 200 tonnes per year in the CHSKCr indicator flowing into the source
(b) a 24-hour composite sample obtained by forming 12 volume equal incremental samples taken at intervals of 2 hours
(c) a 24-hour composite sample obtained by forming 12 volume flow rates proportional to the incremental samples taken at intervals of 2 hours
Explanatory note: If multiple pollution indicators are analysed simultaneously, the sample type of the highest category may be used, for example, if the use of samples of type (a) for one indicator and type (b) for the other indicator analysed simultaneously, the sample type (b) may be used for both pollution indicators.
1) Act No. 505 / 1990 Coll., on Metrology, as amended.

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Regulation Information

CitationGovernment Decree No. 143 / 2012 Coll., on the procedure for the determination of waste water pollution, the calculation of the amount of pollution and the measurement of the volume of waste water discharged into surface water
Regulation Type-
Author-
CollectionCode of Laws
Date of Promulgation10.05.2012
Effective from01.06.2012
Effective until-
Status Valid
The regulation text is for informational purposes only.
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